ASTM A671 CC60 EFW Pipe
What is ASTM A671 GR CC60 material?
ASTM A671 CC60 covers the standard specification for electric welded molten steel pipe. ASTM A671 Gr CC60 Class 22 The main components are carbon, silicon, phosphorus and sulfur. CC60 refers to the grade of steel pipe, indicating a yield strength of approximately 60 ksi (thousand pounds per square inch).
A671 Gr CC60 steel pipe is mainly used to manufacture pipes for high-pressure purposes. It is usually suitable for steel pipes with an outer diameter of not less than 16in (405mm) and a wall thickness of not less than 1/4in (6.4mm). CL22 welded steel pipe indicates stress relief, and CL32 HFW pipe indicates normalizing treatment. During the welding process of A671 Gr CC60 straight seam welded pipe, problems such as thermal cracks, reduced low-temperature toughness, and pores may occur. It is necessary to improve the technical requirements of welding materials in a targeted manner, strictly control the content of S and P elements, and control the welding heat input. quantity and interlayer temperature, etc. to ensure the quality of the weld.
ASTM A671 Gr CC60 EFW Pipe Chemical Composition:
| Steel grade | Chemical composition | |||||
|---|---|---|---|---|---|---|
| C | Si | Mn | P | S | Ti | |
| CC60/C60 | 0.21 | 0.13 ~0.45 |
0.55 ~0.98 |
0.035 | 0.035 | - |
ASTM A671 Gr CC60 Electric fusion welded pipe Mechanical Properties:
| Steel Grade | BASE METAL MECHANICAL COMPOSITION | Welding point tensile strength (N/mm2) | ||
|---|---|---|---|---|
| Yield point (N/mm2) | Tensile Stregth (N/mm2) | Elongation (%) | ||
| CC60/C60 | 220 | 415~550 | 25 | 415~550 |
Straight seam welded pipe
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